Modularized door frame capable of being quickly mounted and dismounted

Abstract

The invention discloses a modular door frame capable of being rapidly mounted and dismounted, and belongs to the technical field of door frames. Upper vertical frames are detachably mounted on the two sides of the bottom of an arc frame part, and a cross beam is further mounted between the upper vertical frames; the locking mechanism comprises a threaded rod movably installed in the rotating cavity, a gear ring is arranged in the middle of the threaded rod, two sets of racks meshed with the gear ring are arranged in the meshing cavity, and the outer sides of the racks are fixedly connected with clamping plates arranged in the side surrounding edge. A linkage threaded ring meshed with the threaded rod is mounted in the linkage cavity, and the inner side of the wall pier is fixed through the linkage threaded ring; a plurality of sets of locking pieces matched with the threaded rod are movably arranged in the linkage threaded ring, and a locking ring arranged on the periphery of the threaded rod in a sleeving mode is installed in the limiting cavity. The inner wall and the two sides of the wall pier can be synchronously locked through the locking mechanism, the locking piece is extruded through the locking ring, at the moment, the extrusion part locks threads on the threaded rod, the threaded rod and the linkage threaded ring are prevented from loosening, and the stability is improved and the service life is prolonged through the design.

Description

Technical Field

[0001] The invention relates to the technical field of door frames, in particular to a modular door frame which can be quickly assembled and disassembled. Background Art

[0002] A door is an entrance or exit of a building or a device installed at an entrance that can be opened and closed. It is an entity that divides a limited space and can connect and block the entrances and exits of two or more spaces. Door cover is a building decoration term, which refers to the two door frames inside and outside the door. It is also directly called door frame. Its main function is to fix the door leaf and protect the corners and decorations. It is often used in the decoration process to protect the door from scratches, corrosion, damage, dirt, etc. The existing various types of wall panel materials use cut and assembled door and window frame panels. For example, when the cut tongue and groove are overlapped with the lintel board, the phenomenon of inverted eight-shaped cracks at the overlap is relatively common.

[0003] The patent application with publication number CN117211646A discloses a fixed installation structure of aluminum-plastic composite doors and windows, including a movable box, a fixed box and a window body, wherein the fixed box is arranged on the window body, and a groove matched with the movable box is formed on the fixed box, and the installation structure includes: a fixed execution module, which is arranged on the movable box and is used to connect the movable box, the fixed box and the wall; and a trigger structure, which is arranged between the movable box and the fixed execution module, and controls the fixed execution module to work when the fixed box and the movable box are in contact; a locking structure, which is arranged between the slide plate and the trigger structure, and is used to fix the trigger structure and the slide plate; the whole device has a high degree of automation, gets rid of the traditional fixing method of bolts and expansion screws, does not require staff to use auxiliary work to fix doors and windows, and shortens the installation cycle of doors and windows.

[0004] However, the above disclosed door and window installation structure has general stability and cannot be used to fix the wall from multiple directions. In addition, the installation process is time-consuming and labor-intensive, and it is not convenient to disassemble quickly. There is a lack of a quick splicing and locking structure. Summary of the invention

[0005] The purpose of the present invention is to provide a modular door frame that can be quickly installed and disassembled in order to solve the problems that the existing door and window installation structure has general stability, cannot be fixed to the wall from multiple directions, has a time-consuming and labor-intensive installation process, is inconvenient for quick disassembly, and lacks a quick splicing and locking structure.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a modular door frame that can be quickly installed and disassembled, comprising an arc frame part, a vertical frame part and a locking mechanism, the arc frame part comprising a first arc frame and a second arc frame spliced ​​with each other; the vertical frame part consists of an upper vertical frame and a lower vertical frame, the upper vertical frame can be detachably installed on both sides of the bottom of the arc frame part, and a crossbeam is also installed between the upper vertical frames, and the crossbeam is used to quickly lock the upper vertical frame and the arc frame part; the outer sides of the first arc frame and the second arc frame are provided with a top surrounding edge for sealing the wall pile; the front and rear sides of the upper and lower vertical frames are provided with side surrounding edges for sealing the wall pile; the locking mechanism is arranged inside the upper and lower vertical frames, and the upper and lower vertical frames are provided with a rotating cavity, a meshing cavity, and a locking cavity arranged in sequence from the outside to the inside. A limiting cavity and a linkage cavity; the locking mechanism comprises a threaded rod movably installed in the rotating cavity, a gear ring is provided in the middle part of the threaded rod, two groups of racks meshing with the gear ring are provided in the meshing cavity, and the outer side of the rack is fixedly connected with a clamping plate movably arranged in the side edge; the clamping plate is used to fix the two sides of the wall pile; a linkage threaded ring meshing with the threaded rod is slidably installed in the linkage cavity, and a plurality of groups of second locking nails are fixedly provided on the inner side of the linkage threaded ring, and the linkage threaded ring is used to fix the inner side of the wall pile; a plurality of groups of locking members cooperating with the threaded rod are movably provided inside the linkage threaded ring, and a locking ring sleeved on the outer periphery of the threaded rod is installed in the limiting cavity, and the locking ring is used to fix the locking member and prevent it from accidentally disengaging.

[0007] As a further solution of the present invention: a plurality of positioning columns are arranged on the inner side of the first arc frame, and a plurality of positioning holes cooperating with the positioning columns are opened on the inner side of the second arc frame; an installation groove is opened between the first arc frame and the second arc frame, and glass is movably installed in the installation groove.

[0008] As a further solution of the present invention: quick-insertion blocks are provided at the bottom of the first arc frame and the second arc frame, and a through cavity 1 is provided inside the quick-insertion blocks; two groups of quick-insertion cavities cooperating with the quick-insertion blocks are provided on the top of the upper vertical frame, and a through cavity 2 penetrating the quick-insertion cavities is provided inside the upper vertical frame; contraction cavities are provided on both sides of the crossbeam, a sliding seat is slidably provided in the contraction cavity, a locking plate is fixedly provided on the outer side of the sliding seat, and the locking plate passes through the through cavity 1 and the through cavity 2 in turn to lock the quick-insertion block and the quick-insertion cavity.

[0009] As a further solution of the present invention: a slide groove connected to the contraction cavity is provided at the bottom of the beam, a protrusion slidably arranged in the slide groove is provided at the bottom of the sliding seat, and the inner side of the sliding seat is connected to the inner wall of the contraction cavity through multiple sets of locking springs.

[0010] As a further solution of the present invention: a rotating groove is provided on the inner wall of the rotating cavity, a rotating convex ring cooperating with the rotating groove is provided on the outer wall of the threaded rod; and a groove is provided on the outer side of the threaded rod.

[0011] As a further solution of the present invention: connecting cavities are provided on both sides of the meshing cavity, and a clamping cavity connected to the connecting cavity is provided on the inner side of the side edge; a connecting arm slidably arranged in the connecting cavity is fixedly arranged on the outer side of the rack, and the clamping plate is fixedly arranged on the outer side of the connecting arm and movably arranged in the clamping cavity; and a plurality of groups of first locking pins are also arranged on the outer wall of the clamping plate.

[0012] As a further solution of the present invention: a plurality of arc-shaped slots are provided on the inner side of the linkage threaded ring, an arc-shaped extrusion cavity is provided on the inner side of the arc-shaped slots, a locking cavity penetrating the linkage threaded ring is provided on the inner side of the arc-shaped extrusion cavity, and the locking piece is slidably arranged in the locking cavity; a plurality of locking arc plates are provided on the outer wall of the locking ring, and the locking arc plates are movably arranged in the arc-shaped extrusion cavity to squeeze and lock the locking piece.

[0013] As a further solution of the present invention: the locking member includes a locking portion and an extrusion portion, a plurality of mounting holes are provided inside the arc-shaped extrusion cavity, a return spring is arranged inside the mounting hole, and the extrusion portion is connected to the outer side of the return spring.

[0014] As a further solution of the present invention: a sealed cavity is formed on the inner wall of the upper vertical frame and the lower vertical frame, a cover plate is installed in the sealed cavity, a positioning cavity cooperating with the rotating cavity is formed in the middle of the cover plate, operating cavities are formed on both sides of the rotating cavity, and the sealed cavity is connected with the meshing cavity through the operating cavity; a plurality of groups of toggle blocks are provided on the outer wall of the locking ring, and bolts are installed at the diagonal positions of the cover plate.

[0015] As a further solution of the present invention: a plurality of sliding arms are arranged on the outer wall of the linkage threaded ring, and a plurality of sliding cavities cooperating with the sliding arms are opened on the inner wall of the linkage cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can quickly assemble the first arc frame and the second arc frame through the positioning column and the positioning hole, and then insert the quick-insertion cavity at the top of the upper vertical frame into the quick-insertion block, and then make the locking plates on both sides of the crossbeam pass through the through cavity 1 and the through cavity 2 in turn to lock the quick-insertion block and the quick-insertion cavity. Finally, the lower vertical frame is installed to limit the upper vertical frame. This design is ingenious and effective, which improves the practicality and disassembly and assembly efficiency of the modular door frame.

[0018] 2. The present invention can synchronously clamp and lock the inner wall and both sides of the wall pile through the locking mechanism, thereby improving the safety and service life of the door frame. When the threaded rod rotates clockwise, under the meshing of the rack and the gear ring, the clamping plates on both sides will move closer to the middle and clamp the two sides of the wall pile. And at this time, under the cooperative drive of the thread, the linkage thread ring will also move closer to the direction of the wall pile and lock its inner wall. Finally, the locking member is squeezed by the locking ring, and the squeezing part slides inward and locks the thread on the threaded rod, avoiding the threaded rod and the linkage thread ring from loosening after long-term use. This design improves the stability and service life of the modular door frame that can be quickly installed and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 It is a three-dimensional structural diagram of the arc frame in the present invention;

[0022] Figure 3 It is a three-dimensional structural diagram of the upper vertical frame in the present invention;

[0023] Figure 4 is a cross-sectional view of the crossbeam in the present invention;

[0024] Figure 5 is a partial cross-sectional view of the arc frame of the present invention;

[0025] Figure 6 is a partial cross-sectional view of the present invention;

[0026] Figure 7 It is a three-dimensional structural diagram of the locking structure in the present invention;

[0027] Figure 8 It is a three-dimensional structural diagram of the threaded rod in the present invention;

[0028] Fig. 9 It is a three-dimensional structural diagram of the linkage threaded ring in the present invention;

[0029] Fig.10 is a cross-sectional view of the linkage threaded ring of the present invention;

[0030] Fig.11 It is a three-dimensional structural diagram of the locking ring in the present invention;

[0031] Fig.12 is a three-dimensional structural diagram of the locking member in the present invention;

[0032] Fig.13 It is a partial three-dimensional structural diagram of the vertical frame portion of the present invention;

[0033] Fig.14 It is a partial three-dimensional structural diagram of the vertical frame part in the horizontal direction of the present invention.

[0034] Description of reference numerals:

[0035] 1. Arc frame; 101. First arc frame; 102. Second arc frame; 103. Top edge; 104. Mounting groove; 105. Glass; 106. Quick-insert block; 107. Through cavity 1; 108. Positioning column; 109. Positioning hole; 110. Quick-insert cavity; 111. Through cavity 2; 112. Crossbeam; 113. Contraction cavity; 114. Slide groove; 115. Sliding seat; 116. Locking plate; 117. Bump; 118. Locking spring;

[0036] 2. Mullion part; 201. Upper mullion; 202. Lower mullion; 203. Side edge; 204. Rotation cavity; 205. Engagement cavity; 206. Limit cavity; 207. Linkage cavity; 208. Rotation groove; 209. Communication cavity; 210. Clamping cavity; 211. Operation cavity; 212. Sliding cavity; 213. Sealing cavity; 214. Cover plate; 215. Positioning cavity; 216. Bolt;

[0037] 3. Locking mechanism; 301. Threaded rod; 302. Groove; 303. Rotating convex ring; 304. Gear ring; 305. Rack; 306. Connecting arm; 307. Clamping plate; 308. First locking pin; 309. Linked threaded ring; 310. Second locking pin; 311. Sliding arm; 312. Arc-shaped slot; 313. Arc-shaped extrusion cavity; 314. Locking cavity; 315. Locking piece; 316. Locking part; 317. Extrusion part; 318. Mounting hole; 319. Reset spring; 320. Locking ring; 321. Locking arc plate; 322. Toggle block. DETAILED DESCRIPTION

[0038] The following will be combined with the attached Figures 1 to 14 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention provides a modular door frame that can be quickly installed and disassembled by improvement. Figure 1-Figure 14As shown, it includes an arc frame portion 1, a vertical frame portion 2 and a locking mechanism 3. The arc frame portion 1 includes a first arc frame 101 and a second arc frame 102 spliced ​​together; the vertical frame portion 2 is composed of an upper vertical frame 201 and a lower vertical frame 202. The upper vertical frame 201 can be detachably installed on both sides of the bottom of the arc frame portion 1. A crossbeam 112 is also installed between the upper vertical frames 201. The crossbeam 112 is used to quickly lock the upper vertical frame 201 and the arc frame portion 1; the first arc frame 101 and The outer side of the second arc frame 102 is provided with a top surrounding edge 103 for sealing the wall pile; the front and rear sides of the upper mullion 201 and the lower mullion 202 are provided with side surrounding edges 203 for sealing the wall pile; the locking mechanism 3 is arranged inside the upper mullion 201 and the lower mullion 202, and the upper mullion 201 and the lower mullion 202 are provided with a rotating cavity 204, a meshing cavity 205, a limiting cavity 206 and a linkage cavity 207 which are sequentially sleeved from the outside to the inside; The fixing mechanism 3 includes a threaded rod 301 movably installed in the rotating cavity 204, a gear ring 304 is provided in the middle of the threaded rod 301, two groups of racks 305 meshing with the gear ring 304 are provided in the meshing cavity 205, and the outer side of the rack 305 is fixedly connected with a clamping plate 307 movably arranged in the side surrounding edge 203; the clamping plate 307 is used to fix the two sides of the wall pile; a linkage threaded ring 309 meshing with the threaded rod 301 is slidably installed in the linkage cavity 207, and a plurality of groups of second locking pins 310 are fixedly provided on the inner side of the linkage threaded ring 309, and the linkage threaded ring 309 is used to fix the inner side of the wall pile; a plurality of groups of locking members 315 cooperating with the threaded rod 301 are movably provided inside the linkage threaded ring 309, and a locking ring 320 sleeved on the outer periphery of the threaded rod 301 is installed in the limiting cavity 206, and the locking ring 320 is used to fix the locking member 315 and prevent it from accidentally disengaging.

[0040] In this embodiment: the modular door frame for quick installation and disassembly is mainly divided into three parts: the arc frame part 1, the vertical frame part 2 and the locking mechanism 3. When the device is in use, the first arc frame 101 and the second arc frame 102 can be quickly assembled through the positioning column 108 and the positioning hole 109, and then the quick plug cavity 110 on the top of the upper vertical frame 201 is inserted into the quick plug block 106. The protrusion 117 slides toward the middle, thereby driving the sliding seat 115 to shrink into the shrinking cavity 113. After being installed in a suitable position, the protrusion 117 is released, and under the action of the locking spring 118, the locking plates 116 on both sides pass through the through cavity 107 and the through cavity 2 111 in turn to lock the quick plug block 106 and the quick plug cavity 110, and finally the lower vertical frame 202 is installed to limit the upper vertical frame 201. When the threaded rod 301 rotates clockwise, the clamping plates 307 on both sides will move closer to the middle part under the cooperation of the rack 305 and the gear ring 304. At this time, under the driving of the thread, the linkage thread ring 309 will also move closer to the direction of the wall and lock its inner wall. Then the locking arc plate 321 is inserted into the arc slot 312, and then the locking ring 320 is rotated clockwise. When the locking arc plate 321 squeezes the extrusion part 317, the locking member 315 slides inward along the locking cavity 314 and locks the thread on the threaded rod 301.

[0041] See attached Figure 1 -Attached Figure 2 A plurality of positioning columns 108 are arranged on the inner side of the first arc frame 101, and a plurality of positioning holes 109 cooperating with the positioning columns 108 are provided on the inner side of the second arc frame 102; an installation groove 104 is provided between the first arc frame 101 and the second arc frame 102, and a glass 105 is movably installed in the installation groove 104.

[0042] In this embodiment, in order to facilitate the rapid locking of the arc frame 1 and the glass 105, a positioning column 108 and a positioning hole 109 structure that cooperate with each other are designed.

[0043] See attached Figure 2 -Attached Figure 3 A quick-insertion block 106 is provided at the bottom of the first arc frame 101 and the second arc frame 102, and a through cavity 107 is provided inside the quick-insertion block 106; two groups of quick-insertion cavities 110 cooperating with the quick-insertion block 106 are provided at the top of the upper vertical frame 201, and a through cavity 2 111 penetrating the quick-insertion cavity 110 is provided inside the upper vertical frame 201; a contraction cavity 113 is provided on both sides of the crossbeam 112, and a sliding seat 115 is slidably provided in the contraction cavity 113, and a locking plate 116 is fixedly provided on the outer side of the sliding seat 115, and the locking plate 116 passes through the through cavity 107 and the through cavity 2 111 in turn to lock the quick-insertion block 106 and the quick-insertion cavity 110.

[0044] In this embodiment: during installation, the quick-insertion cavity 110 at the top of the upper vertical frame 201 is inserted into the quick-insertion block 106, and then the locking plates 116 on both sides of the crossbeam 112 are used to lock the upper vertical frame 201 and the arc frame portion 1, and finally the lower vertical frame 202 is installed to limit the upper vertical frame 201.

[0045] See attached Figure 4 -Attached Figure 5 A slide groove 114 communicating with the contraction cavity 113 is provided at the bottom of the cross beam 112 , a protrusion 117 slidably arranged in the slide groove 114 is provided at the bottom of the sliding seat 115 , and the inner side of the sliding seat 115 is connected to the inner wall of the contraction cavity 113 through multiple sets of locking springs 118 .

[0046] In this embodiment: when the cross beam 112 needs to be installed, the protrusion 117 is first slid toward the middle, thereby driving the sliding seat 115 to retract into the retracting cavity 113. After being installed to a suitable position, the protrusion 117 is released, and under the action of the locking spring 118, the locking plates 116 on both sides sequentially pass through the through cavity 107 and the through cavity 2 111 to lock the quick-insertion block 106 and the quick-insertion cavity 110. When the cross beam 112 needs to be disassembled, the protrusion 117 is slid toward the middle, thereby driving the sliding seat 115 to retract into the retracting cavity 113, and at this time, the locking plates 116 are sequentially separated from the through cavity 107 and the through cavity 2 111 to complete the unlocking.

[0047] See attached Figure 7 and attached Fig.13 The inner wall of the rotating cavity 204 is provided with a rotating groove 208 , and the outer wall of the threaded rod 301 is provided with a rotating convex ring 303 that cooperates with the rotating groove 208 ; the outer side of the threaded rod 301 is provided with a groove 302 .

[0048] In this embodiment, in order to ensure that the threaded rod 301 can rotate freely relative to the rotating cavity 204, so as to further drive the clamping plate 307 and the linked threaded ring 309 to clamp and fix the wall, a rotating convex ring 303 and a rotating groove 208 structure that cooperate with each other are designed. In order to facilitate driving the threaded rod 301 to rotate by an external tool, a groove 302 is provided.

[0049] See attached Figure 7 and attached Fig.13 -Attached Fig.14 A connecting cavity 209 is provided on both sides of the meshing cavity 205, and a clamping cavity 210 connected to the connecting cavity 209 is provided on the inner side of the side edge 203; a connecting arm 306 slidably set in the connecting cavity 209 is fixedly provided on the outer side of the rack 305, and a clamping plate 307 is fixedly provided on the outer side of the connecting arm 306 and movably set in the clamping cavity 210; a plurality of first locking pins 308 are also provided on the outer wall of the clamping plate 307.

[0050] In this embodiment: when the threaded rod 301 rotates clockwise, with the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move toward the middle, and the first locking pin 308 will also be inserted into the wall to improve stability.

[0051] See attached Fig.10 -Attached Fig.12 A plurality of arc-shaped slots 312 are provided on the inner side of the linkage threaded ring 309, an arc-shaped extrusion cavity 313 is provided on the inner side of the arc-shaped slots 312, a locking cavity 314 penetrating the linkage threaded ring 309 is provided on the inner side of the arc-shaped extrusion cavity 313, and a locking member 315 is slidably arranged in the locking cavity 314; a plurality of locking arc plates 321 are provided on the outer wall of the locking ring 320, and the locking arc plates 321 are movably arranged in the arc-shaped extrusion cavity 313 and squeeze and lock the locking member 315.

[0052] In this embodiment, when the locking ring 320 needs to be installed, the locking arc plate 321 is first inserted into the arc-shaped slot 312, and then the locking ring 320 is rotated clockwise. When the locking arc plate 321 presses the pressing portion 317, the locking member 315 slides inward along the locking cavity 314 and locks the thread on the threaded rod 301.

[0053] See attached Fig.10 -Attached Fig.12 The locking member 315 includes a locking portion 316 and an extrusion portion 317 . A plurality of mounting holes 318 are provided inside the arc-shaped extrusion cavity 313 . A return spring 319 is provided inside the mounting hole 318 . The extrusion portion 317 is connected to the outer side of the return spring 319 .

[0054] In this embodiment: when the door frame needs to be removed as a whole, the locking ring 320 is rotated counterclockwise to disengage the locking arc plate 321 from the extrusion portion 317. At this time, under the action of the reset spring 319, the locking member 315 automatically pops outward, and the locking portion 316 disengages from the threaded ring and unlocks it.

[0055] See attached Figure 6 and attached Fig.13 -Attached Fig.14 A sealed cavity 213 is provided on the inner wall of the upper vertical frame 201 and the lower vertical frame 202, a cover plate 214 is installed in the sealed cavity 213, a positioning cavity 215 cooperating with the rotating cavity 204 is provided in the middle of the cover plate 214, and an operating cavity 211 is provided on both sides of the rotating cavity 204, and the sealed cavity 213 is connected with the meshing cavity 205 through the operating cavity 211; a plurality of groups of toggle blocks 322 are provided on the outer wall of the locking ring 320, and bolts 216 are installed at the diagonal of the cover plate 214.

[0056] In this embodiment: after the clamping plate 307 and the linked threaded ring 309 have locked the wall, a toggle block 322 is designed to facilitate the rotation of the locking ring 320, thereby further locking and unlocking the locking member 315. In order to facilitate the rotation of the locking ring 320 from the outside by a professional tool, an operating cavity 211 is designed. After the door frame is installed, a cover plate 214 is designed to shield the operating cavity 211 from direct exposure to the air.

[0057] See attached Fig. 9 and attached Fig.13 A plurality of sliding arms 311 are arranged on the outer wall of the linkage threaded ring 309 , and a plurality of sliding cavities 212 cooperating with the sliding arms 311 are opened on the inner wall of the linkage cavity 207 .

[0058] In this embodiment, driven by the threaded engagement, in order to ensure that the linkage threaded ring 309 slides inward along the linkage cavity 207 and thereby fixes the inner wall of the buttress, a sliding arm 311 and a sliding cavity 212 structure that cooperate with each other are designed.

[0059] Working principle of the present invention: When the device is used, the first arc frame 101 and the second arc frame 102 can be quickly assembled through the positioning column 108 and the positioning hole 109, and then the quick-insertion cavity 110 at the top of the upper vertical frame 201 is inserted into the quick-insertion block 106. The protrusion 117 slides toward the middle, thereby driving the sliding seat 115 to shrink into the shrinking cavity 113. After being installed in a suitable position, the protrusion 117 is released, and under the action of the locking spring 118, the locking plates 116 on both sides pass through the through cavity 107 and the through cavity 2 111 in turn to lock the quick-insertion block 106 and the quick-insertion cavity 110, and finally the lower vertical frame 202 is installed to limit the upper vertical frame 201. When the threaded rod 301 rotates clockwise, at this time, under the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move closer to the middle. At this time, driven by the thread, the linked thread ring 309 will also move toward the wall and lock its inner wall. Then the locking arc plate 321 is inserted into the arc slot 312, and then the locking ring 320 is rotated clockwise. When the locking arc plate 321 presses the pressing part 317, the locking member 315 slides inward along the locking cavity 314 and locks the thread on the threaded rod 301.

[0060] When disassembly is required, the locking ring 320 is rotated counterclockwise to separate the locking arc plate 321 from the extrusion portion 317. At this time, the locking member 315 automatically pops outward under the action of the return spring 319, and the locking portion 316 is separated from the threaded ring and unlocked. Then the threaded rod 301 is rotated counterclockwise again. At this time, under the cooperation of the rack 305 and the gear ring 304, the clamping plates 307 on both sides will move away from each other. At this time, under the driving of the thread, the linkage threaded ring 309 will also move away from the outside and unlock its inner wall.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A modular door frame for quick installation and removal, comprising an arc frame portion (1), a vertical frame portion (2) and a locking mechanism (3), characterized in that: The arc frame portion (1) comprises a first arc frame (101) and a second arc frame (102) which are spliced ​​to each other; the vertical frame portion (2) consists of an upper vertical frame (201) and a lower vertical frame (202); the upper vertical frame (201) is detachably mounted on both sides of the bottom of the arc frame portion (1); a crossbeam (112) is further mounted between the upper vertical frames (201); the crossbeam (112) is used to quickly lock the upper vertical frame (201) and the arc frame portion (1); The outer sides of the first arc frame (101) and the second arc frame (102) are provided with top edges (103) for sealing the wall pile; the front and rear sides of the upper mullion (201) and the lower mullion (202) are provided with side edges (203) for sealing the wall pile; the locking mechanism (3) is arranged inside the upper mullion (201) and the lower mullion (202); the upper mullion (201) and the lower mullion (202) are provided with a rotating cavity (204), a meshing cavity (205), a limiting cavity (206) and a linkage cavity (207) which are sequentially sleeved from the outside to the inside; The locking mechanism (3) comprises a threaded rod (301) movably mounted in the rotating cavity (204); a toothed ring (304) is arranged in the middle of the threaded rod (301); two groups of racks (305) meshing with the toothed ring (304) are arranged in the meshing cavity (205); a clamping plate (307) movably mounted in the side edge (203) and fixedly connected to the outer side of the racks (305); the clamping plate (307) is used to fix the two sides of the wall pile; a gear (307) movably mounted in the linkage cavity (207) and engaging with the threaded rod (301) is slidably mounted in the linkage cavity (207); A meshing linked threaded ring (309), wherein a plurality of groups of second locking pins (310) are fixedly arranged on the inner side of the linked threaded ring (309), and the linked threaded ring (309) is used to fix the inner side of the wall pile; a plurality of groups of locking members (315) cooperating with the threaded rod (301) are movably arranged inside the linked threaded ring (309), and a locking ring (320) sleeved on the outer periphery of the threaded rod (301) is installed in the limiting cavity (206), and the locking ring (320) is used to fix the locking member (315) and prevent it from accidentally detaching.

2. A modular door frame for quick installation and removal according to claim 1, characterized in that: A plurality of groups of positioning columns (108) are arranged on the inner side of the first arc frame (101), and a plurality of groups of positioning holes (109) cooperating with the positioning columns (108) are provided on the inner side of the second arc frame (102); an installation groove (104) is provided between the first arc frame (101) and the second arc frame (102), and a glass (105) is movably installed in the installation groove (104).

3. A modular door frame for quick installation and removal according to claim 1, characterized in that: A quick-insertion block (106) is provided at the bottom of the first arc frame (101) and the second arc frame (102), and a through cavity (107) is provided inside the quick-insertion block (106); two groups of quick-insertion cavities (110) cooperating with the quick-insertion block (106) are provided at the top of the upper vertical frame (201), and a through cavity (111) penetrating the quick-insertion cavity (110) is provided inside the upper vertical frame (201); a contraction cavity (113) is provided on both sides of the crossbeam (112), a sliding seat (115) is slidably provided in the contraction cavity (113), and a locking plate (116) is fixedly provided on the outer side of the sliding seat (115), and the locking plate (116) passes through the through cavity (107) and the through cavity (111) in sequence to lock the quick-insertion block (106) and the quick-insertion cavity (110).

4. A modular door frame for rapid installation and removal according to claim 3, characterized in that: The bottom of the crossbeam (112) is provided with a slide groove (114) connected to the contraction cavity (113); the bottom of the sliding seat (115) is provided with a protrusion (117) slidably arranged in the slide groove (114); the inner side of the sliding seat (115) is connected to the inner wall of the contraction cavity (113) through multiple groups of locking springs (118).

5. The modular door frame for quick installation and removal according to claim 1, characterized in that: The inner wall of the rotating cavity (204) is provided with a rotating groove (208), and the outer wall of the threaded rod (301) is provided with a rotating convex ring (303) that cooperates with the rotating groove (208); and the outer side of the threaded rod (301) is provided with a groove (302).

6. A modular door frame for rapid installation and removal according to any one of claims 1 to 4, characterized in that: A connecting cavity (209) is provided on both sides of the meshing cavity (205), and a clamping cavity (210) connected to the connecting cavity (209) is provided on the inner side of the side edge (203); a connecting arm (306) slidably arranged in the connecting cavity (209) is fixedly arranged on the outer side of the rack (305), and the clamping plate (307) is fixedly arranged on the outer side of the connecting arm (306) and movably arranged in the clamping cavity (210); and a plurality of first locking pins (308) are also arranged on the outer wall of the clamping plate (307).

7. A modular door frame for rapid installation and removal according to any one of claims 1 to 4, characterized in that: The inner side of the linkage threaded ring (309) is provided with a plurality of arc-shaped slots (312), the inner side of the arc-shaped slots (312) is provided with an arc-shaped extrusion cavity (313), the inner side of the arc-shaped extrusion cavity (313) is provided with a locking cavity (314) penetrating the linkage threaded ring (309), and the locking member (315) is slidably arranged in the locking cavity (314); the outer wall of the locking ring (320) is provided with a plurality of locking arc plates (321), the locking arc plates (321) are movably arranged in the arc-shaped extrusion cavity (313) and squeeze and lock the locking member (315).

8. A modular door frame for rapid installation and removal according to claim 7, characterized in that: The locking member (315) comprises a locking portion (316) and an extrusion portion (317); a plurality of mounting holes (318) are provided inside the arc-shaped extrusion cavity (313); a return spring (319) is provided inside the mounting hole (318); and the extrusion portion (317) is connected to the outer side of the return spring (319).

9. The modular door frame for quick installation and removal according to claim 1, characterized in that: A sealed cavity (213) is provided on the inner walls of the upper vertical frame (201) and the lower vertical frame (202), a cover plate (214) is installed in the sealed cavity (213), a positioning cavity (215) cooperating with the rotating cavity (204) is provided in the middle of the cover plate (214), operating cavities (211) are provided on both sides of the rotating cavity (204), and the sealed cavity (213) is communicated with the meshing cavity (205) through the operating cavity (211); a plurality of groups of toggle blocks (322) are provided on the outer wall of the locking ring (320), and bolts (216) are installed at the diagonal positions of the cover plate (214).

10. A modular door frame for rapid installation and removal according to any one of claims 1 to 4, characterized in that: A plurality of groups of sliding arms (311) are arranged on the outer wall of the linkage threaded ring (309), and a plurality of groups of sliding cavities (212) cooperating with the sliding arms (311) are provided on the inner wall of the linkage cavity (207).

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